公开(公告)号：US11710853B2

公开(公告)日：2023-07-25

申请号：US17410520

申请日：2021-08-24

Applicant: GS Yuasa International Ltd.

Inventor： Tetsuhiro Kobayashi ,  Yudai Kawasoe ,  Kenta Nagamine

IPC: H01M10/0567 ,  C07D239/26 ,  C07D239/38 ,  C07D239/52 ,  C07D239/54 ,  C07D251/24 ,  C07D251/30 ,  C07D251/38 ,  C07D251/46 ,  H01G11/06 ,  H01G11/60 ,  H01G11/62 ,  H01G11/64 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01G11/50

CPC classification number: H01M10/0567 ,  C07D239/26 ,  C07D239/38 ,  C07D239/52 ,  C07D239/54 ,  C07D251/24 ,  C07D251/30 ,  C07D251/38 ,  C07D251/46 ,  H01G11/06 ,  H01G11/60 ,  H01G11/62 ,  H01G11/64 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01G11/50 ,  H01M2300/0025

Abstract: Provided are a nonaqueous electrolyte capable of providing a nonaqueous electrolyte energy storage device with reduced direct current resistance and an increased capacity retention ratio after charge-discharge cycles, a nonaqueous electrolyte energy storage device including such a nonaqueous electrolyte, and a method for producing such a nonaqueous electrolyte energy storage device. One mode of the present invention is a nonaqueous electrolyte for an energy storage device, containing an additive represented by the following Formula (1) or Formula (2). In Formula (1), R1 to R4 are each independently a hydrogen atom or a group represented by —NRa2, —ORa, —SRa, etc., with the proviso that at least one of R1 to R4 is a group represented by —ORa, —SRa, —COORa, —CORa, —SO2Ra, or —SO3Ra. In Formula (2), R5 to R7 are each independently a hydrogen atom or a group represented by —NRb2, —ORb, or —SRb, with the proviso that at least one of R5 to R7 is a group represented by —SRb.